/* Copyright 2016 OpenMarket Ltd Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ 'use strict'; import React from 'react'; import PropTypes from 'prop-types'; import { linkifyElement } from '../../../HtmlUtils'; const sdk = require('../../../index'); const MatrixClientPeg = require('../../../MatrixClientPeg'); const ImageUtils = require('../../../ImageUtils'); const Modal = require('../../../Modal'); module.exports = React.createClass({ displayName: 'LinkPreviewWidget', propTypes: { link: PropTypes.string.isRequired, // the URL being previewed mxEvent: PropTypes.object.isRequired, // the Event associated with the preview onCancelClick: PropTypes.func, // called when the preview's cancel ('hide') button is clicked onHeightChanged: PropTypes.func, // called when the preview's contents has loaded }, getInitialState: function() { return { preview: null, }; }, componentWillMount: function() { this.unmounted = false; MatrixClientPeg.get().getUrlPreview(this.props.link, this.props.mxEvent.getTs()).then((res)=>{ if (this.unmounted) { return; } this.setState( { preview: res }, this.props.onHeightChanged, ); }, (error)=>{ console.error("Failed to get preview for " + this.props.link + " " + error); }).done(); }, componentDidMount: function() { if (this.refs.description) { linkifyElement(this.refs.description); } }, componentDidUpdate: function() { if (this.refs.description) { linkifyElement(this.refs.description); } }, componentWillUnmount: function() { this.unmounted = true; }, onImageClick: function(ev) { const p = this.state.preview; if (ev.button != 0 || ev.metaKey) return; ev.preventDefault(); const ImageView = sdk.getComponent("elements.ImageView"); let src = p["og:image"]; if (src && src.startsWith("mxc://")) { src = MatrixClientPeg.get().mxcUrlToHttp(src); } const params = { src: src, width: p["og:image:width"], height: p["og:image:height"], name: p["og:title"] || p["og:description"] || this.props.link, fileSize: p["matrix:image:size"], link: this.props.link, }; Modal.createDialog(ImageView, params, "mx_Dialog_lightbox"); }, render: function() { const p = this.state.preview; if (!p || Object.keys(p).length === 0) { return
; } // FIXME: do we want to factor out all image displaying between this and MImageBody - especially for lightboxing? let image = p["og:image"]; const imageMaxWidth = 100; const imageMaxHeight = 100; if (image && image.startsWith("mxc://")) { image = MatrixClientPeg.get().mxcUrlToHttp(image, imageMaxWidth, imageMaxHeight); } let thumbHeight = imageMaxHeight; if (p["og:image:width"] && p["og:image:height"]) { thumbHeight = ImageUtils.thumbHeight(p["og:image:width"], p["og:image:height"], imageMaxWidth, imageMaxHeight); } let img; if (image) { img =
; } return (
{ img }
{ p["og:title"] }
{ p["og:site_name"] ? (" - " + p["og:site_name"]) : null }
{ p["og:description"] }
); }, });